Linux Kernel up to 5.13.13 ext4 Subsystem fs/ext4/inline.c ext4_write_inline_data_end race condition

CVSS Meta Temp Score
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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Linux Kernel up to 5.13.13. Affected by this issue is the function ext4_write_inline_data_end of the file fs/ext4/inline.c of the component ext4 Subsystem. Executing a manipulation can lead to race condition. This vulnerability is handled as CVE-2021-40490. There is not any exploit available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.13.13 (Operating System). It has been declared as problematic. This vulnerability affects the function ext4_write_inline_data_end of the file fs/ext4/inline.c of the component ext4 Subsystem. The manipulation with an unknown input leads to a race condition vulnerability. The CWE definition for the vulnerability is CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. The impact remains unknown.

The weakness was released 09/03/2021. The advisory is shared for download at git.kernel.org. This vulnerability was named CVE-2021-40490. There are known technical details, but no exploit is available.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.6
VulDB Meta Temp Score: 4.4

VulDB Base Score: 4.6
VulDB Temp Score: 4.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Race condition
CWE: CWE-362
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: git.kernel.org

Timelineinfo

09/03/2021 🔍
09/03/2021 +0 days 🔍
09/03/2021 +0 days 🔍
09/09/2021 +6 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2021-40490 (🔍)
GCVE (CVE): GCVE-0-2021-40490
GCVE (VulDB): GCVE-100-181996

Entryinfo

Created: 09/03/2021 07:29
Updated: 09/09/2021 14:39
Changes: 09/03/2021 07:29 (41), 09/09/2021 14:39 (2)
Complete: 🔍
Cache ID: 216::103

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